MLA

Thayer, Scofield, 1889-1982. Pound, Ezra. Box 38, folder 1046-1074. 1915-23, n.d.. https://collections.library.yale.edu/catalog/17142320.

APA, 6th edition

Thayer, Scofield, 1889-1982. (["Box 38, folder 1046-1074"])(1915-23, n.d.)[Pound, Ezra]. https://collections.library.yale.edu/catalog/17142320.